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Comparing arrays in JUnit assertions, concise built-in way?
... If you want to see which bytes don't match you can convert them to string: assertEquals(Arrays.toString(expectedResult), Arrays.toString(result));
– Erdem
Dec 3 '15 at 12:12
...
Why doesn't Java Map extend Collection?
...being a particularly useful abstraction. For example:
Set<Map.Entry<String,String>>
would allow:
set.add(entry("hello", "world"));
set.add(entry("hello", "world 2");
(assuming an entry() method that creates a Map.Entry instance)
Maps require unique keys so this would violate this....
Capturing Ctrl-c in ruby
...erminate; exit}
puts "Starting up"
while true do
message = socket.recv_string
puts "Message: #{message.inspect}"
socket.send_string("Message received")
end
Source
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return, return None, and no return at all?
...
The only way to get the output of dis as a string is to redirect stdout to some sort of IO buffer (e.g. StringIO). Even then, comparing directly like that might not work as I believe dis.dis also reports some line numbers ...
– mgilson
...
How to search and replace globally, starting from the cursor position and wrapping around the end of
... :substitute command is repeated with the same search
pattern, replacement string, and flags, using the :& command
(see :help :&):
1,''-&&
The latter, however, performs the substitution on the range of lines
from the first line of the file to the line where the previous context
mar...
Loading existing .html file with android WebView
...hanks for your answer. You means that i have to convert my .html file into String, then load it with loadData or loadDataWithBaseUrl method?
– laph
Oct 26 '10 at 22:19
...
Java Reflection Performance
...e, running Sun JRE 6u10:
public class Main {
public static void main(String[] args) throws Exception
{
doRegular();
doReflection();
}
public static void doRegular() throws Exception
{
long start = System.currentTimeMillis();
for (int i=0; i<1...
Convert pandas dataframe to NumPy array
...ot what you want from the get go. In my case, having copied your DF from a string, the index type is string (represented by an object dtype in pandas):
In [102]: df
Out[102]:
label A B C
ID
1 NaN 0.2 NaN
2 NaN NaN 0.5
3 NaN 0.2 0.5
4 0.1 0.2 N...
How to print formatted BigDecimal values?
...
public static String currencyFormat(BigDecimal n) {
return NumberFormat.getCurrencyInstance().format(n);
}
It will use your JVM’s current default Locale to choose your currency symbol. Or you can specify a Locale.
NumberFormat.get...
Merging two images in C#/.NET
...ltiple photos together:
public static System.Drawing.Bitmap CombineBitmap(string[] files)
{
//read all images into memory
List<System.Drawing.Bitmap> images = new List<System.Drawing.Bitmap>();
System.Drawing.Bitmap finalImage = null;
try
{
int width = 0;
...